import java.util.Scanner;
public class 方法奇偶数 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.println("输入一个正整数");
        int num = in.nextInt();
        jiou(num);
    }
    public static void jiou(int num){
        if(num%2==0){
            System.out.println("偶数");
        }
        else {
            System.out.println("奇数");
        }
    }
}
